Home / 10,439.39-15,659.91-4,198.58

Finding the Fourth Proportional to 10,439.39, 15,659.91 and 4,198.58

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Solution

The fourth proportional to 10,439.39, 15,659.91 and 4,198.58 is: 6,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.39 : 15,659.91 = 4,198.58 : x
  2. Step 2: Convert to fraction form
    10,439.39/15,659.91 = 4,198.58/x
  3. Step 3: Cross multiply
    10,439.39x = 15,659.91 × 4,198.58
  4. Step 4: Simplify right side
    10,439.39x = 65,749,306.63
  5. Step 5: Solve for x
    x = 65,749,306.63/10,439.39
  6. Step 6: Final answer
    x = 6,298.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.